Improvement in boiler-feeders



UNITED STATES PATENT EEICE.

THEODORE W. BURGER, OF JERSEY CI'IY, NEW JERSEY.

IMPROVEMENT IN BOILER-FEEDERS.

Specification forming part of Letters Patent No. 37,673, dated February 17, 1863.

To a/ZZ whom t may concern:

Beit known that I, THEoDoEE W. BURGER, of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Improvement in Self-Regulating Boiler- Feeders 5 and I do hereby declare that the tollowing is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in whchy Figure l is a horizontal section of a boilerfeeder constructed according to my invention, the plane of section being indicated bythe line y y in Fig. 2, which is a vertical section ot' the same in the plane indicated by the line wat' in Fig. 1.

Similar letters of reference indicate corresponding parts in both figures.

the boiler by gravitation through an opening, the height of which regulates the level to which it is supplied; and it consists in a certain arrangement of the chambers, valves, and ports, whereby the construction ot' such feeders is much simplified.

To enable others skilled in the art to make and apply my invention, I will proceed to describe its construction and operation.

A is a box, divided by a vertical plane partition extending all across, and a second vertical partition, lf', extending from the said partition b to the outer side, into three chambers, c, d, and e, ot' which c may be termed the inletchamber, d the measuring-chamber,7 and c the feeding-channber.7

The supply-pipe leading from a reservoir at any elevation above the box A is connected with the inlet chamber at j', and the lower part of the feeding-chamber eis connected at g with the boiler, the top of the opening g or ot' the opening ofthe pipe connecting it with the boiler being at the level at which it is desired the boiler shall be filled. In the lower part of the partition b there are two ports, h and li, one on each si'de of' the partition b', one communicating with the inlet-chamber c and the other with the measuring-chamber d.

B is a slide-valve, arranged within the feeding-chamber and working horizontally between suitable guides, j j, on a seat formed upon the inner side of the partition b, and having a cavity, K, in its face long enough to cover or nearly cover the two ports Izl i atthe same tim e. This valve has attached to it a stem, Z, which works through a stufling-box at one end of The operation is as follows: The movement of the valve in the direction ot' the red arrow (shown in Fig. 1.) brings the chambers c and d into communication through ports i It, and valve-cavity lc, as shown in tha-t figure, and its movement in the opposite direction closes the port t', thereby shutting oi' the chamber c trom the chamber d and uncovers the port lz, thereby bringing the chamber d into comm unication with the chamber e. rIhe chamber c is always full of water. By the lirst mentioned l movement ofthe valve the water is permitted This invention relates to that class ot' boilerf1 eders through which the water is i'ed into i to flow from the chamber c into the chamber d and till the latter chamber, and by the movement in the opposite direction the water is permitted to llow from the chamber d into the chamber c, whence it flows into the boiler by gravitation whenever the level in the latter is below the top of the opening g, so that steam can pass from the boiler through the said opening to place the water in the chamber e in equilibrio with that in the boiler. When the water in the boiier is high enough to cover the top of the opening g, the pressure ot' the steam therein prevents the entrance ot' any more from the chamber e but as soon as the said water gets low enough to uncover the top of the said. opening more enters from the chamber e with every movement of the valve B in the direction of the red arrow. The operation is assisted by the formation of a vacuum in the measuring chamber d and inletchamber c by the condensation therein of steam, which has been admitted to the chamber dwhile the port h was uncovered, and which is afterward allowed to enter the chamber c and shut off from the boiler by the closing of the port h to the chamber e, and the vacuum thus produced may render it unnecessary to place the reservoir above the box A.

What I claim as my invention, and desire to secure by Letters Patent, is-

The arrangement of the chambers d c e, valve B, and ports h t', substantially as and for the purpose herein specified.

THEODORE W. B URGER.

Witnesses:

M. S. PARTRIDe-E, DANIEL ROBERTSON. 

